21284850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{491}}^1$

素因数の和:540

約数の個数: 72

約数和(自身を含む): 56188368

約数和(自身を除く): 34903518

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 150, 170, 255, 289, 425, 491, 510, 578, 850, 867, 982, 1275, 1445, 1473, 1734, 2455, 2550, 2890, 2946, 4335, 4910, 7225, 7365, 8347, 8670, 12275, 14450, 14730, 16694, 21675, 24550, 25041, 36825, 41735, 43350, 50082, 73650, 83470, 125205, 141899, 208675, 250410, 283798, 417350, 425697, 626025, 709495, 851394, 1252050, 1418990, 2128485, 3547475, 4256970, 7094950, 10642425, 21284850]

約数ペア:

[(1, 21284850), (2, 10642425), (3, 7094950), (5, 4256970), (6, 3547475), (10, 2128485), (15, 1418990), (17, 1252050), (25, 851394), (30, 709495), (34, 626025), (50, 425697), (51, 417350), (75, 283798), (85, 250410), (102, 208675), (150, 141899), (170, 125205), (255, 83470), (289, 73650), (425, 50082), (491, 43350), (510, 41735), (578, 36825), (850, 25041), (867, 24550), (982, 21675), (1275, 16694), (1445, 14730), (1473, 14450), (1734, 12275), (2455, 8670), (2550, 8347), (2890, 7365), (2946, 7225), (4335, 4910)]