21597300

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:463

約数の個数: 144

約数和(自身を含む): 73259200

約数和(自身を除く): 51661900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 27, 30, 36, 38, 45, 50, 54, 57, 60, 75, 76, 90, 95, 100, 108, 114, 135, 150, 171, 180, 190, 225, 228, 270, 285, 300, 342, 380, 421, 450, 475, 513, 540, 570, 675, 684, 842, 855, 900, 950, 1026, 1140, 1263, 1350, 1425, 1684, 1710, 1900, 2052, 2105, 2526, 2565, 2700, 2850, 3420, 3789, 4210, 4275, 5052, 5130, 5700, 6315, 7578, 7999, 8420, 8550, 10260, 10525, 11367, 12630, 12825, 15156, 15998, 17100, 18945, 21050, 22734, 23997, 25260, 25650, 31575, 31996, 37890, 39995, 42100, 45468, 47994, 51300, 56835, 63150, 71991, 75780, 79990, 94725, 95988, 113670, 119985, 126300, 143982, 159980, 189450, 199975, 215973, 227340, 239970, 284175, 287964, 359955, 378900, 399950, 431946, 479940, 568350, 599925, 719910, 799900, 863892, 1079865, 1136700, 1199850, 1439820, 1799775, 2159730, 2399700, 3599550, 4319460, 5399325, 7199100, 10798650, 21597300]

約数ペア:

[(1, 21597300), (2, 10798650), (3, 7199100), (4, 5399325), (5, 4319460), (6, 3599550), (9, 2399700), (10, 2159730), (12, 1799775), (15, 1439820), (18, 1199850), (19, 1136700), (20, 1079865), (25, 863892), (27, 799900), (30, 719910), (36, 599925), (38, 568350), (45, 479940), (50, 431946), (54, 399950), (57, 378900), (60, 359955), (75, 287964), (76, 284175), (90, 239970), (95, 227340), (100, 215973), (108, 199975), (114, 189450), (135, 159980), (150, 143982), (171, 126300), (180, 119985), (190, 113670), (225, 95988), (228, 94725), (270, 79990), (285, 75780), (300, 71991), (342, 63150), (380, 56835), (421, 51300), (450, 47994), (475, 45468), (513, 42100), (540, 39995), (570, 37890), (675, 31996), (684, 31575), (842, 25650), (855, 25260), (900, 23997), (950, 22734), (1026, 21050), (1140, 18945), (1263, 17100), (1350, 15998), (1425, 15156), (1684, 12825), (1710, 12630), (1900, 11367), (2052, 10525), (2105, 10260), (2526, 8550), (2565, 8420), (2700, 7999), (2850, 7578), (3420, 6315), (3789, 5700), (4210, 5130), (4275, 5052)]