21730380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1669}}^1$

素因数の和:1719

約数の個数: 96

約数和(自身を含む): 71823360

約数和(自身を除く): 50092980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1669, 1860, 2170, 2604, 3255, 3338, 4340, 5007, 6510, 6676, 8345, 10014, 11683, 13020, 16690, 20028, 23366, 25035, 33380, 35049, 46732, 50070, 51739, 58415, 70098, 100140, 103478, 116830, 140196, 155217, 175245, 206956, 233660, 258695, 310434, 350490, 362173, 517390, 620868, 700980, 724346, 776085, 1034780, 1086519, 1448692, 1552170, 1810865, 2173038, 3104340, 3621730, 4346076, 5432595, 7243460, 10865190, 21730380]

約数ペア:

[(1, 21730380), (2, 10865190), (3, 7243460), (4, 5432595), (5, 4346076), (6, 3621730), (7, 3104340), (10, 2173038), (12, 1810865), (14, 1552170), (15, 1448692), (20, 1086519), (21, 1034780), (28, 776085), (30, 724346), (31, 700980), (35, 620868), (42, 517390), (60, 362173), (62, 350490), (70, 310434), (84, 258695), (93, 233660), (105, 206956), (124, 175245), (140, 155217), (155, 140196), (186, 116830), (210, 103478), (217, 100140), (310, 70098), (372, 58415), (420, 51739), (434, 50070), (465, 46732), (620, 35049), (651, 33380), (868, 25035), (930, 23366), (1085, 20028), (1302, 16690), (1669, 13020), (1860, 11683), (2170, 10014), (2604, 8345), (3255, 6676), (3338, 6510), (4340, 5007)]