21209370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:504

約数の個数: 128

約数和(自身を含む): 66479616

約数和(自身を除く): 45270246

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 17, 21, 26, 30, 34, 35, 39, 42, 51, 65, 70, 78, 85, 91, 102, 105, 119, 130, 170, 182, 195, 210, 221, 238, 255, 273, 357, 390, 442, 455, 457, 510, 546, 595, 663, 714, 910, 914, 1105, 1190, 1326, 1365, 1371, 1547, 1785, 2210, 2285, 2730, 2742, 3094, 3199, 3315, 3570, 4570, 4641, 5941, 6398, 6630, 6855, 7735, 7769, 9282, 9597, 11882, 13710, 15470, 15538, 15995, 17823, 19194, 23205, 23307, 29705, 31990, 35646, 38845, 41587, 46410, 46614, 47985, 54383, 59410, 77690, 83174, 89115, 95970, 100997, 108766, 116535, 124761, 163149, 178230, 201994, 207935, 233070, 249522, 271915, 302991, 326298, 415870, 504985, 543830, 605982, 623805, 706979, 815745, 1009970, 1247610, 1413958, 1514955, 1631490, 2120937, 3029910, 3534895, 4241874, 7069790, 10604685, 21209370]

約数ペア:

[(1, 21209370), (2, 10604685), (3, 7069790), (5, 4241874), (6, 3534895), (7, 3029910), (10, 2120937), (13, 1631490), (14, 1514955), (15, 1413958), (17, 1247610), (21, 1009970), (26, 815745), (30, 706979), (34, 623805), (35, 605982), (39, 543830), (42, 504985), (51, 415870), (65, 326298), (70, 302991), (78, 271915), (85, 249522), (91, 233070), (102, 207935), (105, 201994), (119, 178230), (130, 163149), (170, 124761), (182, 116535), (195, 108766), (210, 100997), (221, 95970), (238, 89115), (255, 83174), (273, 77690), (357, 59410), (390, 54383), (442, 47985), (455, 46614), (457, 46410), (510, 41587), (546, 38845), (595, 35646), (663, 31990), (714, 29705), (910, 23307), (914, 23205), (1105, 19194), (1190, 17823), (1326, 15995), (1365, 15538), (1371, 15470), (1547, 13710), (1785, 11882), (2210, 9597), (2285, 9282), (2730, 7769), (2742, 7735), (3094, 6855), (3199, 6630), (3315, 6398), (3570, 5941), (4570, 4641)]